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13431320300 = 2252991135533
BaseRepresentation
bin11001000001001000…
…11010111011101100
31021200001101202200102
430200210122323230
5210001404222200
610100435450232
7653561224136
oct144044327354
937601352612
1013431320300
1157726a2812
12272a156978
13136085b208
14915b64056
155392506d5
hex32091aeec

13431320300 has 36 divisors (see below), whose sum is σ = 29175590976. Its totient is φ = 5367067200.

The previous prime is 13431320299. The next prime is 13431320377. The reversal of 13431320300 is 302313431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31334 + ... + 166866.

Almost surely, 213431320300 is an apocalyptic number.

13431320300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13431320300 is an abundant number, since it is smaller than the sum of its proper divisors (15744270676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13431320300 is a wasteful number, since it uses less digits than its factorization.

13431320300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136538 (or 136531 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13431320300 its reverse (302313431), we get a palindrome (13733633731).

The spelling of 13431320300 in words is "thirteen billion, four hundred thirty-one million, three hundred twenty thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 991 1982 3964 4955 9910 19820 24775 49550 99100 135533 271066 542132 677665 1355330 2710660 3388325 6776650 13553300 134313203 268626406 537252812 671566015 1343132030 2686264060 3357830075 6715660150 13431320300